Effects of alumina on the crystallization behavior, densification and dielectric properties of BaO-ZnO-SrO-CaO-Nd2O3-TiO2-B2O3-SiO2 glass-ceramics

被引：12
|
作者：
Hsiang, Hsing-I [1 ]
Mei, Li-Then [1 ]
Yang, Shi-Wen [2 ]
Liao, Wen-Chang [1 ]
Yen, Fu-Su [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Resources Engn, Particulate Mat Res Ctr, Tainan 70101, Taiwan
[2] Natl United Univ, Dept Mat Sci & Engn, Miaoli, Taiwan
来源：
CERAMICS INTERNATIONAL | 2011年 / 37卷 / 07期
关键词：
Sintering; Glass ceramic; Crystallization; LTCC; PARTICLE-SIZE; COMPOSITE; KINETICS; FILLER; SYSTEM;
D O I：
10.1016/j.ceramint.2011.05.083
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The alumina addition effects on the crystallization, sintering behaviors and dielectric properties of BaO-ZnO-SrO-CaO-Nd2O3-TiO2-B2O3-SiO2 (Ba-Zn-Sr-Ca-Nd-Ti-B-Si) glass powder were investigated using the differential thermal analyzer (DTA), thermo-mechanical analyzer (TMA), X-ray diffractometer (XRD). The results showed that the addition of alumina powder into Ba-Zn-Sr-Ca-Nd-Ti-B-Si glass changed the crystallization sequence from Nd2Ti4O11Nd0.66TiO3 to Nd2Ti3O8.7-Nd2Ti2O7-Nd(2)Ti(4)O(11)and increased the densification activation energy due to the dissolution of Al3+ ions into the glass structure. Fully densified 30 vol.% alumina-added Ba-Zn-Sr-Ca-Nd-Ti-B-Si glass can be obtained via glass viscous flow before the second and third crystalline phases, Nd2Ti2O7 and Nd(2)Ti(4)O(11)crystallization. The 30 vol.% alumina-added Ba-Zn-Sr-Ca-Nd-Ti-B-Si glass-ceramics sintered at 900 degrees C exhibited a high dielectric constant of 17 and a quality factor of about 820, which provided a promising candidate for LTCC applications. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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收藏
页码：2453 / 2458
页数：6
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